🚀 RS Calculator v0.2.0: Safer, Smarter, and Now Supports Full Math Expressions!

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🚀 RS Calculator v0.2.0: Now Handles Full Expressions with Infinite Numbers, Operators, and Safety 💥

Hey Pythonistas! 👋

I’m thrilled to announce a huge upgrade to my beginner-friendly calculator library: RS Calculator v0.2.0 🎉

This version brings smarter math, safer evaluation, and a cleaner package design — all in one release!

✨ What’s New in v0.2.0?

✅ Infinite numbers and operators — write full expressions like "2 + 3 * 4 - 1 / 5 + (6 ** 2)"

✅ Parentheses and operator precedence now work correctly

✅ Secure evaluation using asteval instead of risky eval()

✅ Input validation: only math-safe characters allowed

✅ Modern packaging with pyproject.toml

✅ Clear error messages for division by zero and invalid input

📦 Installation

Install via pip:

pip install rs-calculator

pip install rs-calculator==0.2.0

🧠 How to Use

from rs_calculator import calculate, show_help

# Infinite numbers and multiple operators
print(calculate("2 + 3 * 4 - 1 / 5 + (6 ^ 2)"))  # 40.8
print(calculate("10 + 5 * 2 - 3 // 2 + (8 % 3)"))  # 20.5
print(calculate("5 ^ 2 + 10"))                    # 35

# Division by zero
print(calculate("10 / 0"))  # Error: Division by zero

# Help message
show_help()

🛡️ Safe Expression Evaluation

No risky eval() calls!
RS Calculator now uses asteval, a safe math-only interpreter that:

Only evaluates valid math expressions
Rejects anything with unsafe characters or code
Supports only: 0-9, +, -, *, x, /, //, %, **, ^, (), and whitespace